Norm Peterson
corner barstool sitter
I'm afraid that your references are no match for mine.9.5:1 on a port injected turbocharged engine? Sounded suspicious to me, so I did a brief search. Why is it that I can't find ONE source that defends this number? Low and behold, I find 8.4:1...which is very close to what I said, using numbers off the top of my head. I would hate to think that my common sense knows more than you do about your own car...
Got to your Dad's local Subaru dealership's service counter.
Ask to look at page ME(H4DOTC)-2 in Section 3 of the 2010 Legacy and Outback Factory Service manual (subtitled 2010 Model Year Engine (H4DOTC).
1. General Description
A: Specification
In the Sixth row, I'm sure that the number you'll find in the right column next to "Compression Ratio" will match what I have right in front of me as I type this.
Just so you know I checked a little further, the H4SO (nonturbo 2.5L) carries a 10.0 CR (Same manual, Section 2, and no I'm not going to type the rest of it out).
If you learn nothing else about me from this exchange, know that I wouldn't post a hard, unqualified number like 9.5 without having done my homework.
Norm
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